void InsertItem(object item, int index, bool newItem)
{
DependencyObject pageContent = PageTemplate.LoadContent();
var pageItem = (Page)item;
PanoramaItem container = GetPageContainer(pageItem);
if (container == null)
{
container = new PanoramaItem {
DataContext = item, Content = pageContent
};
SetPageContainer(pageItem, container);
}
Items.Insert(index, container);
}
static void SetPageContainer(BindableObject bindable, PanoramaItem container)
{
bindable.SetValue(PageContainerProperty, container);
}